/* ===================

AX2E (AXESCON XACML 2.0 Engine) is the Java authorization engine, which implements OASIS XACML 2.0 standard.
Copyright (C) 2007 AXESCON LLC

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA


Contact: AXESCON LLC - info{at}axescon.com

 =================== */
package axescon.xacml.test.conformance2_0;

import axescon.xacml.engine.BaseCtxHandler;
import axescon.xacml.model.ctx.Attribute;
import axescon.xacml.model.ctx.AttributeValue;
import axescon.xacml.model.ctx.Subject;
import axescon.xacml.model.ctx.XacmlCtx;
import axescon.xacml.model.ctx.impl.AttributeImpl;
import axescon.xacml.model.shared.attr.StringAttribute;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Date: Sep 27, 2005
 *         Responsibilities:
 *         implements retrieval of attributes which are not in request context
 *         this is written for XACML 2.0 Conformance Test suite
 */
public class CTCtxHandler extends BaseCtxHandler {

    String ROLE_ATTR_ID = "urn:oasis:names:tc:xacml:1.0:example:attribute:role";
    AttributeValue ROLE_VALUE = new StringAttribute("Physician");
    Attribute ROLE_ATTR;

    {
        ROLE_ATTR = new AttributeImpl();
        ROLE_ATTR.setAttributeId(ROLE_ATTR_ID);
        ROLE_ATTR.setDataType(StringAttribute.dataType);
        AttributeValue[] avs = new AttributeValue[]{ROLE_VALUE};
        ROLE_ATTR.setAttributeValueArray(avs);
    }

    public Attribute[] getSubjectAttributeArray(String attributeId, String category, XacmlCtx req) {
        if (!ROLE_ATTR_ID.equals(attributeId)) return super.getSubjectAttributeArray(attributeId, category, req);

        //List<Attribute>
        List ret = new ArrayList();
        for (int i = 0; i < req.getSubjectArray().length; i++) {
            Subject s = req.getSubjectArray()[i];
            if (!s.getSubjectCategory().equals(category)) continue;
            ret.add(ROLE_ATTR);
        }
        return (Attribute[]) ret.toArray(new Attribute[ret.size()]);
    }
}
